There are a lot of wastewater pump manufacturers producing different brands and types of wastewater pumps. Wastewater pumps are one of the most important machines in the treatment of wastewater. A lot of industries produce wastewater such as sugar processing, paper manufacturing, chemical industries and so on. It is therefore important to choose an ideal pump for your unique application.
Types of wastewater pumps
When it comes to selecting wastewater pumps, it is important to keep in mind that there are different types of wastewater pumps. There are the single-stage pumps for dry wells, the solids handling submersible pumps and the two staged or single-stage solids handling pumps that have vertical turbines.
When it comes to selecting the right pump, you should consider several factors such as the applicability of the pump, economic costs and more.
Conventional pumps
These are also known as non-clog solid handling pumps. Their purpose is to pump liquids that contain stringy materials such as soft solids. They do not require frequent cleaning and servicing and operate without plugging. They can be installed with vertical or horizontal mounting. Vertically mounted wastewater pumps use a motor on the frame of the pump or a life shaft to pump.
Submersible pumps
These are popular wastewater pumps and non-clog pumps that get immersed in the wastewater they are supposed to pump. They come with powerful motors and are installed directly in a wet well. This means that the pumping station that uses these types of pumps does not require a dry well. The pumping system above the ground is minimal. You only see a concrete slab.
Submersible vs. conventional pumps
When you visit wastewater pump suppliers, you can get confused about whether to choose conventional or submersible pumps. Both of these pumps have their pros and cons.
Submersible pumps do not require a dry well to function and this means that the installation and construction costs of this type of pump are lesser when compared to conventional pumps. Submersible pumps aren’t readily available for inspection and service and do not give warning of any problems.
This means that the costs of maintenance and service are higher when compared to conventional wastewater pumps. Also, if repairs occur, it could lead to lengthy downtimes. However, when it comes to the installation of submersible pumps, it is usually set up with a fixed pipe for discharge. The pipe is supported by a tripod placed on the well floor.
In such an installation, the wet well should be drained during maintenance and inspection or service. Another alternative installation method for submersible pumps is the new pull-up method. Here, the discharge pipes of the pump are connected to an elbow that is permanently fixed to the wet well floor.
The discharge of the pump and the elbow come with a self-locking coupling. The set-up comes with a special mounting bracket that moves on the rails in an up-and-down movement. The pump from wastewater pump manufacturers can be raised or lowered into the well using cranes or cables.